| Business | Phone |
| Boeing Integrated Desense Sys Po Box 156, Ridgecrest 93556 | (760) 499-7100 |
| Schriner Engineering 443 E Inyokern Rd # A, Ridgecrest 93555 | (760) 446-5041 |
| Eer Systems Inc 330 E Ridgecrest Blvd, Ridgecrest 93555 | (760) 375-0390 |
| Survice Engineering Co 900 N Heritage Dr # 1, Ridgecrest 93555 | (760) 446-2424 |
| Srs Technologies 115 S Gold Canyon St, Ridgecrest 93555 | (760) 375-3825 |
| Precision Fuel Testing Systems 515 W Wasp Ave, Ridgecrest 93555 | (760) 375-2398 |